Adler 550-12-23, 550-12-24, 550-12-26 Operating Instruction

Contents Page:

Preface and General Safety Information

Part 1: Operating Instructions Class 550-16-26

1. Product Description ............................................ 5

2. Proper Use.................................................. 5

3 Technical Data ............................................... 6

4. Operation

4.1 Threading the Needle Thread ....................................... 7

4.2 Setting the Needle Thread Tension .................................... 9

4.3 Releasing the Needle Thread Tension .................................. 9

4.4 Setting the Thread Regulator ....................................... 10

4.5 Winding the Hook Thread ......................................... 11

4.6 Changing the Hook Thread Bobbin .................................... 12

4.7 Setting the Hook Thread Tension ..................................... 13

4.8 Changing the Needle ............................................ 14

4.9 Sewing Foot Lift ............................................... 15

4.10 Arresting the Sewing Foot in the High Position............................. 16

4.11 Setting the Sewing Foot Pressure .................................... 16

4.12 Stroke Height of the Sewing Foot during Lifting ............................ 17

4.13 Pulsating sewing foot ............................................ 17

4.14 Knee Switch ................................................. 18

4.15 Left “Correction Value” / Fullness Value Pedal ............................. 18

5. Operating the Controls 550-16-26 ................................... 19

6. Sewing .................................................... 19

7. Maintenance

7.1 Cleaning and Checking........................................... 20

7.2 Lubrication .................................................. 22

1. Product Description

2. Proper Use

The Dürkopp Adler 550-16-26 is a configured sewing station for the sewing-on of sleeves.

The workstations are equipped with a single needle, double lockstitch, post-bed machine with bottom and top belt feed.

30 different fullness values can be selected via the keypad. In order to achieve a firmer pulling-on of the stitch, a supplementary tension can be added when a high fullness value is turned on.

Further details:

Step motor technology for top and bottom belt feed.

•

Material-protective belt feed with two individually powered belts for

•

the top and bottom feed.

The 550-16 is a sewing place which can properly be used for sewing litght to medium weight material. Such material is, as a rule, material made up of textile fibres. This material is used in the garment industry.

Further, it may be possible to also conduct so-called technical seams with this special sewing machine. Here, however, it is essential that the operator (Dürkopp Adler AG would be pleased to collaborate) make an evaluation of the possible dangers because such applications are, on the one hand, comparatively rare and, on the other, the variety is immense. Dependent of the result of this evaluation, appropriate safety measures are to be taken.

Generally, only dry material should be sewn on this machine. The material should not exceed the thickness of 7 mm when compressed by the lowered sewing foot. The material should not contain any hard objects, otherwise it would be necessary to protect the eyes during the sewing process. For the time being, no such guard is available.

The seams are produced generally with threads of textile fibres of a dimension up to 70/3 - 140/3 NeB. Before using any other threads it is necessary, also in this case, to estimate the consequential dangers and to take, if necessary, the respective safety measures.

This special sewing machine may only be installed and operated in a dry and clean environment. If the sewing machine is used in another environment which is not dry and clean, further measures, which are to be agreed upon, may be necessary (see EN 60204-31:1999).

We, as a manufacturer of industrial sewing machines, assume that at least semi-skilled operating personnel will be working on our products so that all normal operations and, where applicable, their dangers are presumed to be known.

3. Technical Data

Noise Workstation-specific emission value to DIN 45635-48-A-1-KL2

Cl. 550-16-26 Lc = 79 dB (A)

Stitch length: 4,4 [mm] Number of

stitches: 2.500 [min Material: G1 DIN 23328 2-plies

-1

]

Stitch type

Needle system:

Needle thickness (as per E-No.:) [Nm]

Thickness of sewing thread max.: [Nm]

Number of stitches max.: [min

-1

] 4.000

Stitch length max.: [mm]

Max. clearance under the sewing feet:

- Sewing [mm]

- Lifted [mm]

Operating pressure: [bar] 6

Air consumption per work cycle: approx. [NL]

Nominal voltage:

Dimensions(L x B xH) [mm]

Working level (ex works): [mm]

Double lockstitch

134-35 797 Sy1955-1

70 - 100

50/3

1,5 - 5,5

0,6

190-240V 50/60 Hz

140 x 750 x 1300

790

Weight [kg]

140

4. Operation

4.1 Threading the Needle Thread

Caution Risk of Injury !

Turn the main switch off ! Thread the needle thread only with the sewing machine turned off.

–

Place the thread rolls on the thread stand and guide the needle and the hook thread through the thread guides. The thread guide 1 must be in vertical position above the thread rolls.

Thread the needle thread as shown in the illustration.

321

Illus. A: Correct thread interlacing

in the middle of the material

Illus. B: Needle thread tension too low

hook thread tension too high high

Illus. C: Needle thread tension too

high

hook thread tension too low

4.2 Setting the Needle Thread Tension

Pre-tension

With open main tension 3 a slight residual tension on the needle thread is necessary. The residual tension is created by pre-tension 1.

The pre-tension 1 influences the length of the cut needle thread end at the same time (starting thread for the next seam).

–

Base position: Turn the knurled nut 1, until its face is flush with bolt 2.

–

Shorter starting thread: Turn knurled nut 1 clockwise.

Main tension

The main tension 3 is to be set as low as possible. The interlacing of the threads should lie in the middle of the material.

Too high thread tensions can lead to undesired puckering and thread breakage in thin material.

–

Set the main tension 3 so that a uniform stitch formation is achieved. Increase tension = Turn the knurled nut clockwise

Decrease tension = Turn the knurled nut -

counterclockwise

ATTENTION !

The main tension can be opened through the control. (e.g. for sewing Polsters)

Supplementary tension

The supplementary tension 4 can be switched on for thicker gathering (programmable).

–

Set the supplementary tension 4 lower than the main tension 3.

4.3 Releasing the Needle Thread Tension

Automatic

The needle thread tension is automatically opened during thread trimming and lifting of the sewing foot.

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